Alert archive / Texas / Flash Flood Warnings in 2024

Flash Flood Warning 138, NWS Fort Worth, TX

November 4, 2024Collin County, Dallas County, Texas

NWS Fort Worth, TX issued this flash flood warning at Nov 4, 2024, 3:41 PM CST for Collin County, Dallas County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 4, 2024, 3:41 PM CST (21:41 UTC)
Expired
Nov 4, 2024, 7:30 PM CST
In force
4 hr
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Flood severity
None

Counties Collin County, TX, Dallas County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 74 km from the middle of the area, began a volume at 21:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.7 hours before the alert went out and 258 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2024-11-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 911 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 2024-11-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 353 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
911 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
485 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
353 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3

Open this sounding in Storm Lab

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 4, 11:47 AM CSTSevere Thunderstorm WarningFWDJack, Montague, Wise43 min
Nov 4, 12:03 PM CSTSevere Thunderstorm WarningFWDCooke, Montague42 min
Nov 4, 12:49 PM CSTSevere Thunderstorm WarningFWDBosque, Hill, Johnson41 min
Nov 4, 12:53 PM CSTSevere Thunderstorm WarningFWDCooke22 min
Nov 4, 1:01 PM CSTSevere Thunderstorm WarningFWDErath, Hood, Somervell28 min
Nov 4, 2:28 PM CSTSevere Thunderstorm WarningFWDCollin, Dallas, Rockwall47 min
Nov 4, 2:59 PM CSTAreal Flood AdvisoryFWDDallas3 hr
Nov 4, 3:13 PM CSTSevere Thunderstorm WarningFWDCollin, Fannin, Grayson, Hunt47 min
Nov 4, 3:18 PM CSTSevere Thunderstorm WarningFWDDallas, Ellis, Hill, Johnson31 min
Nov 4, 3:40 PM CSTRiver Flood WarningFWDDallas14 hr
Nov 4, 3:55 PM CSTSevere Thunderstorm WarningFWDEllis, Hill, Johnson24 min
Nov 4, 3:57 PM CSTSevere Thunderstorm WarningFWDFannin48 min
Nov 4, 4:22 PM CSTSevere Thunderstorm WarningFWDLamar23 min
Nov 4, 4:23 PM CSTFlash Flood WarningFWDEllis, Hill, Johnson3 hr
Nov 4, 4:44 PM CSTSevere Thunderstorm WarningFWDLamar31 min

Nearby

Flash Flood Warnings in Texas, 2024Every flash flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.